Mechanism for trip-free of the bimetallic plate of a safety...

Details Mechanism for trip-free of the bimetallic plate of a safety... Mechanism for trip-free of the bimetallic plate of a safety...

2006-02-28

2006-02-28

Vortman, Anatoly (Department: 2835)

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

C337S068000, C337S072000

Reexamination Certificate

active

07005957

ABSTRACT:
A switch device includes a case with a switch member pivotally engaged with the open top of the case. Two terminals extend from a bottom of the case and a bimetallic plate has a first end fixed to one of the terminals. A distal end of the bimetallic plate is located above the other terminal. A hooking member has one end connected to the switch member and the other end has a hooking portion with which the distal end of the bimetallic plate is engaged. The distal end of the bimetallic plate is lifted when the switch member is pushed to “ON” position. The hook portion is defined between first and second boards and the second board located lower than the first board is shorter so that the bimetallic plate is allowed to be deformed without obstruction when the switch device is overloaded.

REFERENCES:
patent: 4167720 (1979-09-01), Krasser
patent: 4937548 (1990-06-01), Sdunek
patent: 5223813 (1993-06-01), Cambreleng et al.
patent: 5262748 (1993-11-01), Tsung Mou
patent: 5451729 (1995-09-01), Onderka et al.
patent: 5558211 (1996-09-01), Heydner et al.
patent: 6400250 (2002-06-01), Wang

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